was so powerful, the usgs tonight tells us it registered as if it were a magnitude 1.3 earthquake at 6:11 last night. now, there are a number of stories, of course, coming out of this neighborhood today. some of them tragic, some of them absolutely amazing. ann notarangelo has the story of one man, it's just unbelievable. >> reporter: a lot of amazing stories as you know. four people confirmed killed in this explosion at least for now. the coroner's office says, though, they are waiting for the dental records to make positive identifications on those victims. 52 people injured in thi so far, four of those firefighters. 15 people were taken to local hospital by ambulance, the rest got there on their own. one man that allen was referring to is greg who lived at 100 glenview drive and has lived to tell an unbelievable story starting with when heard the explosion. >> all of a sudden, i was just walking and my floor completely came -- wood floors went like -- exploded up, threw me against the wall. after it threw me, i got up, went to the back door, and i looked at the back door and i saw m